CTC Union GSi 16, Installation And Maintenance Manual

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28 CTC GSi 16
6.1.12 External heat source (EHS)
This function is used to connect additional heat sources to
the heating circuit, e.g. water-jacketed stove, solar heat.
The heat from the external heat source is diverted into
the system when the set temperature in the external tank
is reached, and is at least 5°C higher than the setpoint.
Diversion stops when the temperature is 3°C higher. The
compressor and immersion heater stay idle for as long as
there is sufficient energy in the external heat source. Heat is
diverted to both the heating circuit and to hot water.
This comes to an end when one of the following alarms
occur: Primary flow sensor 1, HP in-sensor, Comm. error HP
or if Primary flow sensor 1 is hotter than 80 °C.
Enter settings under Settings/External heat source.
NB: When an external heat source is connected to the
heat pump, a magnetic filter should be fitted on the return
flow between EHS and the heat pump to protect the heat
exchanger.
M
B47
Y41
B7
The mixing valve motor ARA 671 is mounted on the
valve with the knob in the centre position. The motor
must move in an anticlockwise direction to close.
Three-way mixing valve VRG
131